CN103240375B - Forging processing method of brake wheel - Google Patents
Forging processing method of brake wheel Download PDFInfo
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- CN103240375B CN103240375B CN201310166871.6A CN201310166871A CN103240375B CN 103240375 B CN103240375 B CN 103240375B CN 201310166871 A CN201310166871 A CN 201310166871A CN 103240375 B CN103240375 B CN 103240375B
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Abstract
The invention discloses a forging processing method of a brake wheel. The forging processing method includes the steps: a, blanking according to required feed quantity of the model of the brake wheel to obtain rod materials; b, performing hammer forging by heating the rod materials to 1160 DEG C- 1180 DEG C, and performing techniques of deforming, punching, pounding by a forging hammer to obtain middle blanks of the brake wheel; c, adding the middle blanks of the brake wheel into a forming die, adding a forming punch, and performing finish forging at the temperature of 820 DEG C - 840 DEG C to obtain a brake wheel blank; d, performing heat treatment, correction and inspection on the brake wheel blank to obtain a brake wheel finished product. With the forging processing method, defects of air holes, sand holes, included slag, texture loosing and the like of an internal brake wheel structure are overcome, and quality of the brake wheel is improved.
Description
Technical field
The present invention relates to a kind of processing method of accessory, be specifically related to a kind of forging processing method of braked wheel.
Background technology
Casting is poured in casting mold by the metal liquid by melting, obtains the manufacturing process of the part of required form and performance through cooled and solidified.Casting technique cost is low, and technological flexibility is large, can obtain complicated shape and large-scale foundry goods.In prior art, braked wheel mainly adopts casting technique, and in casting technique, easily form the defects such as pin hole, sand holes, slag inclusion, material are loose, affect the quality of cast article, particularly southern climate affects more serious.For making up above defect, process needs to increase the technique such as scarfing cinder, repair welding, thus cause waste that is artificial, material, and the phenomenons such as crackle, distortion is large, internal stress is large, hardness is uneven easily appear in the braked wheel after scarfing cinder, repair welding in Technology for Heating Processing, the qualification rate of product is only about 90%.By the braked wheel that above-mentioned casting technique is made, in use, the phenomenons such as quick abrasion, cracking or fracture can be produced, cause serious loss.
Summary of the invention
The object of the invention is to overcome above shortcoming, a kind of forging processing method of braked wheel is provided, by this forging processing method, the product quality of braked wheel can be improved.
Technical scheme of the present invention is:
A forging processing method for braked wheel, the step of described processing method is as follows:
A, blanking: carry out blanking by the required doses of the model of braked wheel, obtain bar;
B, open die forging: heating bar to 1160 DEG C-1180 DEG C, carry out being out of shape, punching, beat technique with forging hammer, obtain blank in the middle of braked wheel;
C, finish-forging: add in mould by blank in the middle of braked wheel, add forming punching head, carry out finish-forging, obtain braked wheel blank, described final forging temperature is 820 DEG C-840 DEG C;
D, braked wheel blank is heat-treated, corrects and checked, obtain braked wheel finished product.
Further, the raw material manufacturing braked wheel are No. 45 steel.
Further, described forging hammer is pneumatic hammer, and described pneumatic hammer is 75-250 kilogram.
Further, include hydraulic test in described finish-forging technique, the pressure of described hydraulic test is 18-20MPa.
Further, in described free forging process, described heating-up temperature is controlled by temperature sensor.
The forging processing method of braked wheel provided by the invention, tool has the following advantages:
1, the forging processing method of braked wheel provided by the invention, improves the defects such as the pore in braked wheel internal structure, sand holes, slag inclusion, material are loose, improves the product quality of braked wheel.The forging processing method of braked wheel provided by the invention, compared with casting processing technology of the prior art, change the processing technology of braked wheel into Forging Technology, under forging process conditions, change metal inside institutional framework, metal grain is made to obtain refinement, thus improve the defects such as pore in metal interior structures, sand holes, slag inclusion, material are loose, add the intensity of braked wheel, in Technology for Heating Processing, decrease the phenomenons such as crackle, distortion is large, hardness is uneven, improve the product quality of braked wheel.The forging processing method of braked wheel provided by the invention, processing the braked wheel qualification rate obtained is more than 99.8%.
2, the forging processing method of braked wheel provided by the invention, compared with forging processing technology of the prior art, reduces labour intensity, improves operating efficiency.The forging processing method of braked wheel provided by the invention, because adopting Forging Technology, improve the defects such as the pore in metal interior structures, sand holes, slag inclusion, material are loose, thus the technique such as scarfing cinder, repair welding decreased in braked wheel processing technology, simplify flow process, reduce labour intensity, improve operating efficiency.
Detailed description of the invention
Be clearly and completely described to the technical scheme in the embodiment of the present invention below, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment 1
The forging processing method of 1002 type braked wheels, its procedure of processing is as follows:
A, blanking: carry out blanking by doses by needed for 1002 type braked wheels, obtain bar (length 225mm, diameter is 150*150mm);
B, open die forging: heating bar to 1160 DEG C, carry out being out of shape, punching, beat technique with forging hammer, obtain blank in the middle of braked wheel;
C, finish-forging: add in mould by blank in the middle of braked wheel, add forming punching head, carry out finish-forging, obtain braked wheel blank, wherein, final forging temperature is 820 DEG C;
D, braked wheel blank is heat-treated, corrects and checked, obtain braked wheel finished product.
After testing, manufacture braked wheel by this explained hereafter, qualification rate is 99.8%.
In the present embodiment, the raw material manufacturing braked wheel are No. 45 steel, also according to braked wheel instructions for use, can adopt the steel of other models.
Embodiment 2
The forging processing method of 1002-4 type braked wheel, its procedure of processing is as follows:
A, blanking: carry out blanking by doses by needed for 1002-4 type braked wheel, obtain bar (length is 370mm, and diameter is 150*150mm);
B, open die forging: heating bar to 1170 DEG C, carry out being out of shape, punching, beat technique with forging hammer, obtain blank in the middle of braked wheel; Wherein, forging hammer is preferably pneumatic hammer, and pneumatic hammer is 75 kilograms, and forging hammer also can be machine hammer; Before using, first the tup of pneumatic hammer can be carried out preheating, preheat temperature is about 100 DEG C; The heating-up temperature of bar is controlled by temperature sensor, realizes temperature auto-control, makes Forging Technology more accurate, is conducive to the product quality improving braked wheel;
C, finish-forging: add in mould by blank in the middle of braked wheel, add forming punching head, carry out finish-forging, obtain braked wheel blank, wherein, final forging temperature is 830 DEG C;
D, braked wheel blank is heat-treated, corrects and checked, obtain braked wheel finished product.
After testing, manufacture braked wheel by this explained hereafter, qualification rate is 99.9%.
Embodiment 3
The forging processing method of 1002 type braked wheels, its procedure of processing is as follows:
A, blanking: carry out blanking by doses by needed for 1002 type braked wheels, obtain bar (length is 225mm, and diameter is 150*150mm);
B, open die forging: heating bar to 1180 DEG C, carry out being out of shape, punching, beat technique with forging hammer, obtain blank in the middle of braked wheel; Wherein, forging hammer is pneumatic hammer, and pneumatic hammer is 250 kilograms; Heating-up temperature is controlled by temperature sensor, realizes temperature auto-control, makes Forging Technology more accurate, is conducive to the product quality improving braked wheel;
C, finish-forging: add in mould by blank in the middle of braked wheel, add forming punching head, carry out finish-forging, obtain braked wheel blank, wherein, final forging temperature is 840 DEG C; Include hydraulic test in finish-forging technique, and the pressure of hydraulic test is 18-20MPa.
After testing, manufacture braked wheel by this explained hereafter, qualification rate is 99.87%.
Embodiment 4
The forging processing method of 2002-4 type braked wheel, its procedure of processing is as follows:
A, blanking: carry out blanking by doses by needed for 2002-4 type braked wheel, obtain bar (length is 198mm, and diameter is 150*150mm);
B, open die forging: heating bar to 1175 DEG C, carry out being out of shape, punching, beat technique with forging hammer, obtain blank in the middle of braked wheel; Wherein, forging hammer is pneumatic hammer, and pneumatic hammer is 100 kilograms; Heating-up temperature is controlled by temperature sensor, realizes temperature auto-control, makes Forging Technology more accurate, is conducive to the product quality improving braked wheel;
C, finish-forging: add in mould by blank in the middle of braked wheel, add forming punching head, carry out finish-forging, obtain braked wheel blank, wherein, final forging temperature is 825 DEG C; Include hydraulic test in finish-forging technique, and the pressure of hydraulic test is 18-20MPa.
After testing, manufacture braked wheel by this explained hereafter, qualification rate is 99.92%.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments, equivalent replacement etc. done in protection scope of the present invention, all should be included within protection scope of the present invention.
Claims (5)
1. a forging processing method for braked wheel, is characterized in that, the step of described processing method is as follows:
A, blanking: carry out blanking by the required doses of the model of braked wheel, obtain bar;
B, open die forging: heating bar to 1160 DEG C-1180 DEG C, carry out being out of shape, punching, beat technique with forging hammer, obtain blank in the middle of braked wheel;
C, finish-forging: add in mould by blank in the middle of braked wheel, add forming punching head, carry out finish-forging, obtain braked wheel blank, described final forging temperature is 820 DEG C-840 DEG C;
D, braked wheel blank is heat-treated, corrects and checked, obtain braked wheel finished product.
2. the forging processing method of braked wheel according to claim 1, is characterized in that, the raw material manufacturing braked wheel are No. 45 steel.
3. the forging processing method of braked wheel according to claim 2, is characterized in that, described forging hammer is pneumatic hammer, and described pneumatic hammer is 75-250 kilogram.
4. the forging processing method of braked wheel according to claim 3, is characterized in that, includes hydraulic test in described finish-forging technique, and the pressure of described hydraulic test is 18-20MPa.
5. the forging processing method of braked wheel according to claim 4, is characterized in that, in described free forging process, described heating-up temperature is controlled by temperature sensor.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310166871.6A CN103240375B (en) | 2013-05-08 | 2013-05-08 | Forging processing method of brake wheel |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310166871.6A CN103240375B (en) | 2013-05-08 | 2013-05-08 | Forging processing method of brake wheel |
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| CN103240375A CN103240375A (en) | 2013-08-14 |
| CN103240375B true CN103240375B (en) | 2015-07-15 |
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| CN201310166871.6A Expired - Fee Related CN103240375B (en) | 2013-05-08 | 2013-05-08 | Forging processing method of brake wheel |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103659199B (en) * | 2013-12-30 | 2017-05-03 | 太原重工轨道交通设备有限公司 | Method for achieving forging rolling thermal forming of wheel with deep-basin type spoke plate structure |
| CN104972042A (en) * | 2015-06-23 | 2015-10-14 | 第一拖拉机股份有限公司 | Hammer die forging die for half shaft die forgings and hammer die forging process of hammer die forging die |
| CN105328096B (en) * | 2015-11-14 | 2017-08-29 | 沈阳黎明航空发动机(集团)有限责任公司 | A kind of manufacturing process of titanium alloy clip class forging part |
| CN105945187A (en) * | 2016-06-20 | 2016-09-21 | 安徽省瑞杰锻造有限责任公司 | Machining process of drum brake |
| CN105945527B (en) * | 2016-06-20 | 2018-05-08 | 安徽省瑞杰锻造有限责任公司 | A kind of processing technology of rail running wheels |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| GB2055065B (en) * | 1979-06-27 | 1983-05-18 | Percival Barker K | Method and apparatus for formation of rotary or curved workpiece profile |
| KR20010114091A (en) * | 2000-06-21 | 2001-12-29 | 구자홍 | method for manufacturing break drum in washer |
| KR20090078863A (en) * | 2008-01-16 | 2009-07-21 | 주식회사 휠마루 | The forging-processing method for crane wheel |
| CN101850399A (en) * | 2010-05-14 | 2010-10-06 | 付仕忠 | Process method for forging brake cam of automobile |
| CN102029511B (en) * | 2010-12-10 | 2012-06-27 | 南阳二机石油装备(集团)有限公司 | Method for manufacturing novel wear-resistance brake hubs for oil drilling and workover rigs |
| CN202114201U (en) * | 2011-06-09 | 2012-01-18 | 中国科学院金属研究所 | Forging die for brake disc hub of high-speed train |
| CN103071742A (en) * | 2012-08-22 | 2013-05-01 | 昌利锻造有限公司 | Hot forging machining method of positioning hook for train |
| CN202883839U (en) * | 2012-09-21 | 2013-04-17 | 河南省中杰起重机有限公司 | Braking wheel |
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